561669284 has 48 divisors (see below), whose sum is σ = 1110412800. Its totient is φ = 246278400.

The previous prime is 561669271. The next prime is 561669301. The reversal of 561669284 is 482966165.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 693872 + ... + 694680.

It is an arithmetic number, because the mean of its divisors is an integer number (23133600).

Almost surely, 2^561669284 is an apocalyptic number.

It is an amenable number.

561669284 is a deficient number, since it is larger than the sum of its proper divisors (548743516).

561669284 is a wasteful number, since it uses less digits than its factorization.

561669284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364 (or 1362 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 561669284 is about 23699.5629495567. The cubic root of 561669284 is about 825.0752470087.

The spelling of 561669284 in words is "five hundred sixty-one million, six hundred sixty-nine thousand, two hundred eighty-four".